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三相异步电动机控制线路Y-Δ降压启动常见故障分析与改进 被引量:2
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作者 袁连余 《电工材料》 CAS 2015年第6期31-33,37,共4页
三相异步电动机控制线路Y-Δ降压启动装置被广泛运用,是电工基本维修技能训练的主要内容。由于其工作基本原理和对线路的控制较繁琐,出现的故障点不易找出,发生故障的类型很多。对三相异步电动机控制线路Y-Δ降压启动装置中的常见电路... 三相异步电动机控制线路Y-Δ降压启动装置被广泛运用,是电工基本维修技能训练的主要内容。由于其工作基本原理和对线路的控制较繁琐,出现的故障点不易找出,发生故障的类型很多。对三相异步电动机控制线路Y-Δ降压启动装置中的常见电路故障进行了详细分析,得到快速查找、快速清除的方法。 展开更多
关键词 三相异步电动机 Y-Δ降压启动装置 控制线路 故障分析清除
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Enhancement of Real Power Transfer Capability of Transmission Lines
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作者 Nahid-Al-Masood Amina Hasan Abedin Abdul Hasib Chowdhury 《Journal of Energy and Power Engineering》 2012年第7期1114-1118,共5页
As power system interconnections become more prevalent, there has been an increase in use of thyristor controlled shunt connected compensation devices for dynamic power compensation and enhancement of real power trans... As power system interconnections become more prevalent, there has been an increase in use of thyristor controlled shunt connected compensation devices for dynamic power compensation and enhancement of real power transmission capacity. In this paper, an enhancement technique of real power transfer capacity of transmission lines is presented. A SVC (static var compensator) is designed and applied to a simple power system for this purpose. Increase in power flow and improvement in bus voltage profile are observed after using the SVC. Stability analysis of the system after experiencing fault as well as consequent fault clearance by time domain analysis has also beeu performed and satisfactory results are obtained. 展开更多
关键词 SVC (static var compensator) power transfer capability minimum susceptance load flow analysis fault analysis stabilityanalysis.
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